Although knowledge of how things work is sufficient to allow manipulation of nature, what humans really want to know is why things work. Children don't ask how the sky is blue. They ask why the sky is blue.
Michael CrichtonThe past history of human belief is a cautionary tale. We have killed thousands of our fellow human beings because we believed they had signed a contract with the devil, and had become witches. We still kill more than a thousand people each year for witchcraft. In my view, there is only one hope for humankind to emerge from what Carl Sagan called "the demon-haunted world" of our past. That hope is science.
Michael Crichton